{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Studies with transgenic mice expressing human NAG - 1 demonstrated that the expression of NAG - 1 inhibits the development of intestinal tumors and prostate tumors in animal models ."}
{"Chemical": []}